Elevating-machine.



T. WEIGHT.

ELEVATING MACHINE.

APPLIGATION TILED JAN.17. 1914.

1, 1 1 8, 1 69. Patented Nov. 24, 1914.

w ijfif Witnesses Inventor Attorneys TH; NORRIS PETERS C41, PHOTO-LITHO., WASHING TON D. C

THOMAS WRIGHT, or JERSEY CITY, NEW JERSEY.

ELnvArrNs-MAcr-rmn.

Specification of Letters Patent. Patented NOV. 24, 1914:.

Application filed January 17, 1914. Serial No. 812,755.

To all whom it may concern Be it known that I, THOMAS WRIGHT, a citizen of the United States, residing at Jersey City, in the county of Hudson and State of New Jersey, have invented a new and useful Elevating-Machine, of which the following is a specification.

This invention relates to mechanism par: ticularly designed for elevating wagon bodies and the like, the principal object of the invention being to provide elevating means capable of shifting longitudinally for the purpose of elevating the body and subsequently rotating in order to continue the elevation of the body, thus permitting the use of elevating devices which will not project objectionable distances upwardly from the structure carrying them.

Another object is to provide elevating devices of this character. which are caused both to slide and to rotate by the actuation of the same operating element. v a

\Vith the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement ofparts and in the details of construction hereinafter ,de

scribed and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, can be made within the scope of what is claimed, with out departing from the spirit of the invention.

In the accompanying drawings the preferred form of the invention has been shown.

In said drawings :Figure l is a view partly in side elevation and partly in section of a portion of a wagon body and its supporting frame or chassis provided with elevating mechanism such as constitutes the present invention. Fig. 2 is an enlarged sectional view of a portion of the elevating mechanism.

Referring to the drawings by characters of reference A designates the main supporting structure on which the mechanism is mounted, this structure being provided with an aperture a into which extends a guide sleeve 1 formed with an annular flange or head 2 bearing downwardly on the structure A. l-irranged on the head 2 are superposed bearing rings 3 and 4 respectively having anti-friction devices 5' interposed therebetween. A worm wheel-6 is mounted on the upper bearing ring 4 and engages a screw 7 which is slidably mounted in the sleeve 1 and is provided atits lower end. with a cylindrical head 8 adapted to slide freely into the sleeve 1. The structure to be elevated has been indicated at B and has an opening I) through which the screw 7' extends freely. A nut 9 is secured upon the structure B and is engaged by the screw.-

It will be apparent that when the wheel is rotated itfwill slide the screw 7 upwardly into sleeve 1 until the head; 8 is brought againstthe lower face of the wheel or gear. 6 whereupon further rotation of said wheel or gear independently of the screw is prevented and such continued rotation will result in the rotation of the screw, 7. This will cause the nut 9 to feed upwardly along the screw. From theflforegoing it will be apparent that during the initial upward sliding movement of the screw 7, the structure B will be elevated a distance equal, to that between the head 8 and the lower face of the wheel or gear 6 whereas during the rotation ofthescrew 7 the said structure will be elevated a further distance equal to that between said structure B andthe upper end of the screw 7. WVhen the head 8 is elevated against the gear or wheel 6, it remains projected into the sleevel and thus constitutes a bearing or centering means whereby lateral displacement of the screw and of the wheel or gear 6 relative to the structure A.

is prevented. ,Vhere a wagon body or the like is to be elevated preferably four of these elevating mechanisms are used, one adjacent each corner of the structure to be raised.

In Fig. 1 a body G has been shownmountor wheels 6 and having worms 11 thereon suitable means may be provided for rotating the shaft. In the drawings a crank arm 12 has been shown for this purpose. Obviously when the shaft 10 is rotated, all of the gears orwheels 6 will be revolved and the screws 7 will thus be shifted upwardly in unison until their heads are brought meshing with said wheels or gears. Any I against the gears or wheels 6 after which they will be rotated in unison to further elevate the body C.

What is claimed is 1. Elevating mechanism including a stationary guide member, a screw slidably mounted therein and having an unthreaded end portion constituting a head, a wheel engaging the screw and supported by the guide member, and a structure to be ele vated, said structure including a threaded portion engaging the screw, said wheel constitutin g means, when rotated, for sliding the screw to bring its head against the wheel and for subsequently rotating the screw within the threaded portion of the structure to be elevated.

2. The combination with a stationary guide member, and a structure to be ele vated, of a screw threaded within said structure and slidably mounted within the guide member, and revoluble means engaging the screw for successively sliding the screw longitudinally within the guide member and rotating the screw within the structure to be elevated.

3. The combination with a stationary guide element, and a structure to be elevated, of a screw slidably mounted within the guide element and threaded into the structure to be elevated, a revoluble member engaging the screw and supported by the guide element, and means for rotating said member to successively slide the screw longitudinally within the guide element to elevate the Copies of this patent may be obtained for said structure, and to subsequently rotate said screw within the structure to additionally elevate the structure.

l. Elevating mechanism including a stationary guide, a body to be elevated, a screw slidably mounted in the guide and threaded into said body, a head at one end of the screw, an elevating wheel engaging the screw and supported by the guide, and means for rotating the wheel to successively slide the screw within the guide to position the head against the wheel, thereby to partly elevate the body, and to then rotate the screw to complete the elevation of the body.

5. Elevating mechanism including a stationary guide, a body to be elevated, a screw slidably mounted in the guide and threaded into said body, a head at one end of the screw, an elevating wheel engaging the screw and supported by the guide, means for rotating the wheel to successively slide the screw Within the guide to position the head against the wheel, thereby to partly elevate the body and to then rotate the screw to complete the elevation of the body, and antifriction devices interposed between the wheel and the guide.

In testimony that I claim the foregoing as my own, I have hereto ailixed my signature in the presence of two witnesses.

THOMAS W RIGHT.

Witnesses:

JEREMIAH F. CALUCHES, HARRY E. DAVIS.

five cents each, by addressing the Commissioner of Patents,

Washington, D. C." 

